Ricoh RP-5C01
This page was last modified 12:03, 7 February 2022 by Mars2000you. Based on work by Gdx and Lintweaker and others.


Ricoh RP-5C01

The RP-5C01 is a real time clock chip made by Ricoh. This chip or a compatible chip is used in all MSX2 and higher computers.

It stores in its registers the time and date parameters in real time even when the computer is off thank to a battery. The system stores also some parameters.

Note: This chip is integrated in the MSX-System chips since the S1985.


The necessary information is detailed on this page here.